Warning: Permanently added '10.128.0.251' (ED25519) to the list of known hosts. 2025/09/15 18:14:59 parsed 1 programs [ 89.428441][ T5866] cgroup: Unknown subsys name 'net' [ 89.599785][ T5866] cgroup: Unknown subsys name 'cpuset' [ 89.609362][ T5866] cgroup: Unknown subsys name 'rlimit' [ 91.368023][ T5866] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 92.048144][ T956] cfg80211: failed to load regulatory.db [ 94.672107][ T5879] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 95.712921][ T5898] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 95.721695][ T5898] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 95.731776][ T5898] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 95.746068][ T5898] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 95.754582][ T5898] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.735311][ T50] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.748730][ T50] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.790991][ T1114] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.799775][ T1114] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.086234][ T5940] chnl_net:caif_netlink_parms(): no params data found [ 98.187816][ T5940] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.195476][ T5940] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.202820][ T5940] bridge_slave_0: entered allmulticast mode [ 98.210247][ T5940] bridge_slave_0: entered promiscuous mode [ 98.219701][ T5940] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.226934][ T5940] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.234263][ T5940] bridge_slave_1: entered allmulticast mode [ 98.241960][ T5940] bridge_slave_1: entered promiscuous mode [ 98.303853][ T5940] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.319426][ T5940] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.368989][ T5940] team0: Port device team_slave_0 added [ 98.378588][ T5940] team0: Port device team_slave_1 added [ 98.413502][ T5940] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.420736][ T5940] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 98.446894][ T5940] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.460222][ T5940] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.467320][ T5940] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 98.494068][ T5940] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 98.552667][ T5940] hsr_slave_0: entered promiscuous mode [ 98.560594][ T5940] hsr_slave_1: entered promiscuous mode [ 98.715301][ T5940] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 98.729060][ T5940] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 98.739307][ T5940] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 98.750455][ T5940] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 98.829489][ T5940] 8021q: adding VLAN 0 to HW filter on device bond0 [ 98.852645][ T5940] 8021q: adding VLAN 0 to HW filter on device team0 [ 98.867596][ T50] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.874873][ T50] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.892388][ T1106] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.899635][ T1106] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.090109][ T5940] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.135339][ T5940] veth0_vlan: entered promiscuous mode [ 99.148209][ T5940] veth1_vlan: entered promiscuous mode [ 99.177587][ T5940] veth0_macvtap: entered promiscuous mode [ 99.193932][ T5940] veth1_macvtap: entered promiscuous mode [ 99.212955][ T5940] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.227189][ T5940] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 99.243553][ T50] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.254164][ T1151] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.266273][ T1151] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.275500][ T1151] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.412593][ T1114] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.496403][ T1114] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.591512][ T1114] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.673050][ T1114] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/09/15 18:15:13 executed programs: 0 [ 100.048768][ T5183] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 100.058841][ T5183] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 100.068461][ T5183] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 100.077834][ T5183] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 100.085780][ T5183] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 100.265064][ T5969] chnl_net:caif_netlink_parms(): no params data found [ 100.363090][ T5969] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.370480][ T5969] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.378165][ T5969] bridge_slave_0: entered allmulticast mode [ 100.385327][ T5969] bridge_slave_0: entered promiscuous mode [ 100.394399][ T5969] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.401896][ T5969] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.409164][ T5969] bridge_slave_1: entered allmulticast mode [ 100.416797][ T5969] bridge_slave_1: entered promiscuous mode [ 100.454542][ T5969] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.468011][ T5969] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.507495][ T5969] team0: Port device team_slave_0 added [ 100.515538][ T5969] team0: Port device team_slave_1 added [ 100.552016][ T5969] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.559585][ T5969] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 100.586393][ T5969] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.600495][ T5969] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.607634][ T5969] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 100.633556][ T5969] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.690722][ T5969] hsr_slave_0: entered promiscuous mode [ 100.698662][ T5969] hsr_slave_1: entered promiscuous mode [ 100.705065][ T5969] debugfs: 'hsr0' already exists in 'hsr' [ 100.710964][ T5969] Cannot create hsr debugfs directory [ 102.126762][ T5898] Bluetooth: hci0: command tx timeout [ 102.314384][ T1114] bridge_slave_1: left allmulticast mode [ 102.331463][ T1114] bridge_slave_1: left promiscuous mode [ 102.341233][ T1114] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.354909][ T1114] bridge_slave_0: left allmulticast mode [ 102.362109][ T1114] bridge_slave_0: left promiscuous mode [ 102.368551][ T1114] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.619616][ T1114] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 102.630798][ T1114] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 102.642137][ T1114] bond0 (unregistering): Released all slaves [ 102.773449][ T1114] hsr_slave_0: left promiscuous mode [ 102.783077][ T1114] hsr_slave_1: left promiscuous mode [ 102.797816][ T1114] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 102.805358][ T1114] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 102.816455][ T1114] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 102.823895][ T1114] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 102.853070][ T1114] veth1_macvtap: left promiscuous mode [ 102.859932][ T1114] veth0_macvtap: left promiscuous mode [ 102.866917][ T1114] veth1_vlan: left promiscuous mode [ 102.872557][ T1114] veth0_vlan: left promiscuous mode [ 103.390295][ T1114] team0 (unregistering): Port device team_slave_1 removed [ 103.422927][ T1114] team0 (unregistering): Port device team_slave_0 removed [ 103.969420][ T5969] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 103.999586][ T5969] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 104.019105][ T5969] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 104.048867][ T5969] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 104.199185][ T5898] Bluetooth: hci0: command tx timeout [ 104.320529][ T5969] 8021q: adding VLAN 0 to HW filter on device bond0 [ 104.348346][ T5969] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.373859][ T1151] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.381124][ T1151] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.414524][ T36] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.421758][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state [ 104.788666][ T5969] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 104.861937][ T5969] veth0_vlan: entered promiscuous mode [ 104.881426][ T5969] veth1_vlan: entered promiscuous mode [ 104.931358][ T5969] veth0_macvtap: entered promiscuous mode [ 104.949151][ T5969] veth1_macvtap: entered promiscuous mode [ 104.974911][ T5969] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 105.006895][ T5969] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 105.037439][ T36] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.059671][ T36] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.069133][ T1114] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.082510][ T1114] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 105.142252][ T1114] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.151458][ T1114] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 2025/09/15 18:15:18 executed programs: 2 [ 105.183567][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 105.192118][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 105.248098][ T6030] sp0: Synchronizing with TNC [ 105.344527][ T6031] sp0: Synchronizing with TNC [ 105.438845][ T6032] sp0: Synchronizing with TNC [ 105.507772][ T6033] sp0: Synchronizing with TNC [ 105.581286][ T6034] sp0: Synchronizing with TNC [ 105.653790][ T6035] sp0: Synchronizing with TNC [ 105.751903][ T6036] sp0: Synchronizing with TNC [ 105.822009][ T6037] sp0: Synchronizing with TNC [ 105.913173][ T6038] sp0: Synchronizing with TNC [ 105.999590][ T6039] sp0: Synchronizing with TNC [ 106.077005][ T6040] sp0: Synchronizing with TNC [ 106.157204][ T6041] sp0: Synchronizing with TNC [ 106.248523][ T6042] sp0: Synchronizing with TNC [ 106.276081][ T5898] Bluetooth: hci0: command tx timeout [ 106.343706][ T6043] sp0: Synchronizing with TNC [ 106.421339][ T6044] sp0: Synchronizing with TNC [ 106.528308][ T6045] sp0: Synchronizing with TNC [ 106.624792][ T6046] sp0: Synchronizing with TNC [ 106.726216][ T6047] sp0: Synchronizing with TNC [ 106.806503][ T6048] sp0: Synchronizing with TNC [ 106.898748][ T6049] sp0: Synchronizing with TNC [ 107.016348][ T6050] sp0: Synchronizing with TNC [ 107.084948][ T6051] sp0: Synchronizing with TNC [ 107.153361][ T6052] sp0: Synchronizing with TNC [ 107.231068][ T6053] sp0: Synchronizing with TNC [ 107.302722][ T6054] sp0: Synchronizing with TNC [ 107.384989][ T6055] sp0: Synchronizing with TNC [ 107.478188][ T6056] sp0: Synchronizing with TNC [ 107.575520][ T6057] sp0: Synchronizing with TNC [ 107.674215][ T6058] sp0: Synchronizing with TNC [ 107.780387][ T6059] sp0: Synchronizing with TNC [ 107.873947][ T6060] sp0: Synchronizing with TNC [ 107.960803][ T6061] sp0: Synchronizing with TNC [ 108.059767][ T6062] sp0: Synchronizing with TNC [ 108.158230][ T6063] sp0: Synchronizing with TNC [ 108.240965][ T6064] sp0: Synchronizing with TNC [ 108.318508][ T6065] sp0: Synchronizing with TNC [ 108.356262][ T5898] Bluetooth: hci0: command tx timeout [ 108.398745][ T6066] sp0: Synchronizing with TNC [ 108.467358][ T6067] sp0: Synchronizing with TNC [ 108.551230][ T6068] sp0: Synchronizing with TNC [ 108.650150][ T6069] sp0: Synchronizing with TNC [ 108.732431][ T6070] sp0: Synchronizing with TNC [ 108.844553][ T6071] sp0: Synchronizing with TNC [ 108.924298][ T6072] sp0: Synchronizing with TNC [ 109.000127][ T6073] sp0: Synchronizing with TNC [ 109.088425][ T6074] sp0: Synchronizing with TNC [ 109.160477][ T6075] sp0: Synchronizing with TNC [ 109.169033][ T13] [ 109.171410][ T13] ===================================================== [ 109.178351][ T13] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected [ 109.185798][ T13] syzkaller #0 Not tainted [ 109.190211][ T13] ----------------------------------------------------- [ 109.197145][ T13] kworker/u8:1/13 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 109.204780][ T13] ffffffff8f1127b8 (disc_data_lock){.?.+}-{3:3}, at: sixpack_write_wakeup+0x30/0x480 [ 109.214272][ T13] [ 109.214272][ T13] and this task is already holding: [ 109.221638][ T13] ffffffff9a263db8 (&port_lock_key){-.-.}-{3:3}, at: uart_port_ref_lock+0xc4/0x3b0 [ 109.230946][ T13] which would create a new lock dependency: [ 109.236821][ T13] (&port_lock_key){-.-.}-{3:3} -> (disc_data_lock){.?.+}-{3:3} [ 109.244498][ T13] [ 109.244498][ T13] but this new dependency connects a HARDIRQ-irq-safe lock: [ 109.253956][ T13] (&port_lock_key){-.-.}-{3:3} [ 109.253985][ T13] [ 109.253985][ T13] ... which became HARDIRQ-irq-safe at: [ 109.266541][ T13] lock_acquire+0x120/0x360 [ 109.271146][ T13] _raw_spin_lock_irqsave+0xa7/0xf0 [ 109.276433][ T13] serial8250_handle_irq+0x6b/0xbb0 [ 109.281716][ T13] serial8250_default_handle_irq+0xbf/0x200 [ 109.287705][ T13] serial8250_interrupt+0x8d/0x180 [ 109.292895][ T13] __handle_irq_event_percpu+0x295/0xab0 [ 109.298603][ T13] handle_irq_event+0x8b/0x1e0 [ 109.303449][ T13] handle_edge_irq+0x23b/0xa10 [ 109.308287][ T13] __common_interrupt+0x141/0x1f0 [ 109.313400][ T13] common_interrupt+0xb6/0xe0 [ 109.318163][ T13] asm_common_interrupt+0x26/0x40 [ 109.323348][ T13] pv_native_safe_halt+0x13/0x20 [ 109.328368][ T13] default_idle+0x13/0x20 [ 109.332812][ T13] default_idle_call+0x74/0xb0 [ 109.337692][ T13] do_idle+0x1e8/0x510 [ 109.341842][ T13] cpu_startup_entry+0x44/0x60 [ 109.346680][ T13] rest_init+0x2de/0x300 [ 109.350996][ T13] start_kernel+0x3a9/0x410 [ 109.355594][ T13] x86_64_start_reservations+0x24/0x30 [ 109.361141][ T13] x86_64_start_kernel+0x143/0x1c0 [ 109.366338][ T13] common_startup_64+0x13e/0x147 [ 109.371362][ T13] [ 109.371362][ T13] to a HARDIRQ-irq-unsafe lock: [ 109.378361][ T13] (disc_data_lock){.?.+}-{3:3} [ 109.378382][ T13] [ 109.378382][ T13] ... which became HARDIRQ-irq-unsafe at: [ 109.391072][ T13] ... [ 109.391077][ T13] lock_acquire+0x120/0x360 [ 109.398253][ T13] _raw_read_lock+0x36/0x50 [ 109.402826][ T13] sixpack_receive_buf+0x5c/0x1450 [ 109.408016][ T13] tty_ldisc_receive_buf+0x119/0x160 [ 109.413386][ T13] tty_port_default_receive_buf+0x6e/0xa0 [ 109.419178][ T13] flush_to_ldisc+0x24a/0x6e0 [ 109.423930][ T13] process_scheduled_works+0xae1/0x17b0 [ 109.429547][ T13] worker_thread+0x8a0/0xda0 [ 109.434210][ T13] kthread+0x711/0x8a0 [ 109.438354][ T13] ret_from_fork+0x4bc/0x870 [ 109.443019][ T13] ret_from_fork_asm+0x1a/0x30 [ 109.447860][ T13] [ 109.447860][ T13] other info that might help us debug this: [ 109.447860][ T13] [ 109.458331][ T13] Possible interrupt unsafe locking scenario: [ 109.458331][ T13] [ 109.466632][ T13] CPU0 CPU1 [ 109.471980][ T13] ---- ---- [ 109.477326][ T13] lock(disc_data_lock); [ 109.481645][ T13] local_irq_disable(); [ 109.488380][ T13] lock(&port_lock_key); [ 109.495218][ T13] lock(disc_data_lock); [ 109.502138][ T13] [ 109.505577][ T13] lock(&port_lock_key); [ 109.510068][ T13] [ 109.510068][ T13] *** DEADLOCK *** [ 109.510068][ T13] [ 109.518295][ T13] 6 locks held by kworker/u8:1/13: [ 109.523401][ T13] #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 [ 109.535073][ T13] #1: ffffc90000127ba0 ((work_completion)(&buf->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 [ 109.546751][ T13] #2: ffff888141b28ca0 (&buf->lock){+.+.}-{4:4}, at: flush_to_ldisc+0x38/0x6e0 [ 109.555805][ T13] #3: ffff88807808d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref+0x1c/0x90 [ 109.565104][ T13] #4: ffffffff9a263db8 (&port_lock_key){-.-.}-{3:3}, at: uart_port_ref_lock+0xc4/0x3b0 [ 109.574863][ T13] #5: ffff88807808d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref+0x1c/0x90 [ 109.584187][ T13] [ 109.584187][ T13] the dependencies between HARDIRQ-irq-safe lock and the holding lock: [ 109.594579][ T13] -> (&port_lock_key){-.-.}-{3:3} { [ 109.599778][ T13] IN-HARDIRQ-W at: [ 109.603746][ T13] lock_acquire+0x120/0x360 [ 109.609889][ T13] _raw_spin_lock_irqsave+0xa7/0xf0 [ 109.616725][ T13] serial8250_handle_irq+0x6b/0xbb0 [ 109.623558][ T13] serial8250_default_handle_irq+0xbf/0x200 [ 109.631090][ T13] serial8250_interrupt+0x8d/0x180 [ 109.637842][ T13] __handle_irq_event_percpu+0x295/0xab0 [ 109.645113][ T13] handle_irq_event+0x8b/0x1e0 [ 109.651528][ T13] handle_edge_irq+0x23b/0xa10 [ 109.657951][ T13] __common_interrupt+0x141/0x1f0 [ 109.664615][ T13] common_interrupt+0xb6/0xe0 [ 109.670936][ T13] asm_common_interrupt+0x26/0x40 [ 109.677599][ T13] pv_native_safe_halt+0x13/0x20 [ 109.684177][ T13] default_idle+0x13/0x20 [ 109.690154][ T13] default_idle_call+0x74/0xb0 [ 109.696556][ T13] do_idle+0x1e8/0x510 [ 109.702263][ T13] cpu_startup_entry+0x44/0x60 [ 109.708681][ T13] rest_init+0x2de/0x300 [ 109.714566][ T13] start_kernel+0x3a9/0x410 [ 109.720709][ T13] x86_64_start_reservations+0x24/0x30 [ 109.727828][ T13] x86_64_start_kernel+0x143/0x1c0 [ 109.734579][ T13] common_startup_64+0x13e/0x147 [ 109.741164][ T13] IN-SOFTIRQ-W at: [ 109.745164][ T13] lock_acquire+0x120/0x360 [ 109.751303][ T13] _raw_spin_lock_irqsave+0xa7/0xf0 [ 109.758150][ T13] serial8250_handle_irq+0x6b/0xbb0 [ 109.765073][ T13] serial8250_default_handle_irq+0xbf/0x200 [ 109.772601][ T13] serial8250_interrupt+0x8d/0x180 [ 109.779351][ T13] __handle_irq_event_percpu+0x295/0xab0 [ 109.786624][ T13] handle_irq_event+0x8b/0x1e0 [ 109.793029][ T13] handle_edge_irq+0x23b/0xa10 [ 109.799442][ T13] __common_interrupt+0x141/0x1f0 [ 109.806127][ T13] common_interrupt+0x5e/0xe0 [ 109.812465][ T13] asm_common_interrupt+0x26/0x40 [ 109.819140][ T13] __sanitizer_cov_trace_pc+0x0/0x70 [ 109.826081][ T13] __netif_receive_skb_core+0x393a/0x4020 [ 109.833450][ T13] __netif_receive_skb+0x72/0x380 [ 109.840129][ T13] process_backlog+0x60e/0x14f0 [ 109.846616][ T13] __napi_poll+0xc7/0x360 [ 109.852582][ T13] net_rx_action+0x707/0xe30 [ 109.859332][ T13] handle_softirqs+0x286/0x870 [ 109.865736][ T13] do_softirq+0xec/0x180 [ 109.871638][ T13] __local_bh_enable_ip+0x17d/0x1c0 [ 109.878473][ T13] __dev_queue_xmit+0x1d79/0x3b50 [ 109.885141][ T13] ip6_finish_output2+0xf70/0x1480 [ 109.891891][ T13] ip6_output+0x340/0x550 [ 109.897857][ T13] NF_HOOK+0x9e/0x380 [ 109.903493][ T13] mld_sendpack+0x8d4/0xe60 [ 109.909647][ T13] mld_ifc_work+0x83e/0xd60 [ 109.915784][ T13] process_scheduled_works+0xae1/0x17b0 [ 109.922981][ T13] worker_thread+0x8a0/0xda0 [ 109.929209][ T13] kthread+0x711/0x8a0 [ 109.934931][ T13] ret_from_fork+0x4bc/0x870 [ 109.941177][ T13] ret_from_fork_asm+0x1a/0x30 [ 109.947600][ T13] INITIAL USE at: [ 109.951495][ T13] lock_acquire+0x120/0x360 [ 109.957568][ T13] _raw_spin_lock_irqsave+0xa7/0xf0 [ 109.964339][ T13] serial8250_do_set_termios+0x4d1/0x1c30 [ 109.971629][ T13] uart_set_options+0x3c2/0x5b0 [ 109.978053][ T13] serial8250_console_setup+0x2f4/0x3c0 [ 109.985169][ T13] univ8250_console_setup+0x43a/0x540 [ 109.992117][ T13] try_enable_preferred_console+0x4e4/0x650 [ 109.999653][ T13] register_console+0x551/0xf90 [ 110.006061][ T13] univ8250_console_init+0x3a/0x70 [ 110.012722][ T13] console_init+0x10e/0x430 [ 110.018782][ T13] start_kernel+0x254/0x410 [ 110.024869][ T13] x86_64_start_reservations+0x24/0x30 [ 110.031880][ T13] x86_64_start_kernel+0x143/0x1c0 [ 110.038539][ T13] common_startup_64+0x13e/0x147 [ 110.045028][ T13] } [ 110.047534][ T13] ... key at: [] port_lock_key+0x0/0x20 [ 110.055152][ T13] [ 110.055152][ T13] the dependencies between the lock to be acquired [ 110.055159][ T13] and HARDIRQ-irq-unsafe lock: [ 110.068650][ T13] -> (disc_data_lock){.?.+}-{3:3} { [ 110.073870][ T13] IN-HARDIRQ-R at: [ 110.077839][ T13] lock_acquire+0x120/0x360 [ 110.083980][ T13] _raw_read_lock+0x36/0x50 [ 110.090214][ T13] sixpack_write_wakeup+0x30/0x480 [ 110.096985][ T13] tty_wakeup+0xbe/0x100 [ 110.102876][ T13] tty_port_default_wakeup+0xfb/0x170 [ 110.109888][ T13] serial8250_tx_chars+0x72e/0x970 [ 110.116633][ T13] serial8250_handle_irq+0x633/0xbb0 [ 110.123551][ T13] serial8250_default_handle_irq+0xbf/0x200 [ 110.131085][ T13] serial8250_interrupt+0x8d/0x180 [ 110.137838][ T13] __handle_irq_event_percpu+0x295/0xab0 [ 110.145118][ T13] handle_irq_event+0x8b/0x1e0 [ 110.151536][ T13] handle_edge_irq+0x23b/0xa10 [ 110.157954][ T13] __common_interrupt+0x141/0x1f0 [ 110.164620][ T13] common_interrupt+0xb6/0xe0 [ 110.170939][ T13] asm_common_interrupt+0x26/0x40 [ 110.177682][ T13] _raw_spin_unlock_irqrestore+0xa8/0x110 [ 110.185050][ T13] uart_port_unlock_deref+0x111/0x2f0 [ 110.192085][ T13] uart_write+0xe8/0x130 [ 110.197990][ T13] sixpack_receive_buf+0x447/0x1450 [ 110.204860][ T13] tty_ldisc_receive_buf+0x119/0x160 [ 110.211782][ T13] tty_port_default_receive_buf+0x6e/0xa0 [ 110.219137][ T13] flush_to_ldisc+0x24a/0x6e0 [ 110.225450][ T13] process_scheduled_works+0xae1/0x17b0 [ 110.232632][ T13] worker_thread+0x8a0/0xda0 [ 110.238859][ T13] kthread+0x711/0x8a0 [ 110.244567][ T13] ret_from_fork+0x4bc/0x870 [ 110.250791][ T13] ret_from_fork_asm+0x1a/0x30 [ 110.257190][ T13] HARDIRQ-ON-R at: [ 110.261245][ T13] lock_acquire+0x120/0x360 [ 110.267390][ T13] _raw_read_lock+0x36/0x50 [ 110.273528][ T13] sixpack_receive_buf+0x5c/0x1450 [ 110.280280][ T13] tty_ldisc_receive_buf+0x119/0x160 [ 110.287207][ T13] tty_port_default_receive_buf+0x6e/0xa0 [ 110.294567][ T13] flush_to_ldisc+0x24a/0x6e0 [ 110.300977][ T13] process_scheduled_works+0xae1/0x17b0 [ 110.308178][ T13] worker_thread+0x8a0/0xda0 [ 110.314406][ T13] kthread+0x711/0x8a0 [ 110.320115][ T13] ret_from_fork+0x4bc/0x870 [ 110.326340][ T13] ret_from_fork_asm+0x1a/0x30 [ 110.332740][ T13] SOFTIRQ-ON-R at: [ 110.336711][ T13] lock_acquire+0x120/0x360 [ 110.342867][ T13] _raw_read_lock+0x36/0x50 [ 110.349016][ T13] sixpack_receive_buf+0x5c/0x1450 [ 110.355803][ T13] tty_ldisc_receive_buf+0x119/0x160 [ 110.362816][ T13] tty_port_default_receive_buf+0x6e/0xa0 [ 110.370171][ T13] flush_to_ldisc+0x24a/0x6e0 [ 110.376505][ T13] process_scheduled_works+0xae1/0x17b0 [ 110.383686][ T13] worker_thread+0x8a0/0xda0 [ 110.389918][ T13] kthread+0x711/0x8a0 [ 110.395626][ T13] ret_from_fork+0x4bc/0x870 [ 110.401949][ T13] ret_from_fork_asm+0x1a/0x30 [ 110.408364][ T13] INITIAL USE at: [ 110.412244][ T13] lock_acquire+0x120/0x360 [ 110.418296][ T13] _raw_write_lock_irq+0xa2/0xf0 [ 110.424783][ T13] sixpack_close+0x2c/0x280 [ 110.430842][ T13] tty_ldisc_kill+0xa3/0x1a0 [ 110.436981][ T13] tty_ldisc_release+0x174/0x200 [ 110.443468][ T13] tty_release_struct+0x2a/0xd0 [ 110.449881][ T13] tty_release+0xcb0/0x1640 [ 110.455938][ T13] __fput+0x44c/0xa70 [ 110.461474][ T13] task_work_run+0x1d4/0x260 [ 110.467616][ T13] exit_to_user_mode_loop+0xec/0x130 [ 110.474452][ T13] do_syscall_64+0x2bd/0xfa0 [ 110.480593][ T13] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 110.488033][ T13] INITIAL READ USE at: [ 110.492346][ T13] lock_acquire+0x120/0x360 [ 110.498840][ T13] _raw_read_lock+0x36/0x50 [ 110.505411][ T13] sixpack_receive_buf+0x5c/0x1450 [ 110.512509][ T13] tty_ldisc_receive_buf+0x119/0x160 [ 110.519776][ T13] tty_port_default_receive_buf+0x6e/0xa0 [ 110.527478][ T13] flush_to_ldisc+0x24a/0x6e0 [ 110.534136][ T13] process_scheduled_works+0xae1/0x17b0 [ 110.541663][ T13] worker_thread+0x8a0/0xda0 [ 110.548460][ T13] kthread+0x711/0x8a0 [ 110.554563][ T13] ret_from_fork+0x4bc/0x870 [ 110.561156][ T13] ret_from_fork_asm+0x1a/0x30 [ 110.567917][ T13] } [ 110.570402][ T13] ... key at: [] disc_data_lock+0x18/0x100 [ 110.578282][ T13] ... acquired at: [ 110.582072][ T13] lock_acquire+0x120/0x360 [ 110.586733][ T13] _raw_read_lock+0x36/0x50 [ 110.591395][ T13] sixpack_write_wakeup+0x30/0x480 [ 110.596673][ T13] tty_wakeup+0xbe/0x100 [ 110.601081][ T13] tty_port_default_wakeup+0xfb/0x170 [ 110.606650][ T13] serial8250_tx_chars+0x72e/0x970 [ 110.611949][ T13] __start_tx+0x33b/0x480 [ 110.616456][ T13] __uart_start+0x23f/0x460 [ 110.621204][ T13] uart_write+0xdc/0x130 [ 110.625637][ T13] sixpack_receive_buf+0x447/0x1450 [ 110.631017][ T13] tty_ldisc_receive_buf+0x119/0x160 [ 110.636468][ T13] tty_port_default_receive_buf+0x6e/0xa0 [ 110.642350][ T13] flush_to_ldisc+0x24a/0x6e0 [ 110.647284][ T13] process_scheduled_works+0xae1/0x17b0 [ 110.652991][ T13] worker_thread+0x8a0/0xda0 [ 110.657748][ T13] kthread+0x711/0x8a0 [ 110.662000][ T13] ret_from_fork+0x4bc/0x870 [ 110.666767][ T13] ret_from_fork_asm+0x1a/0x30 [ 110.671708][ T13] [ 110.674026][ T13] [ 110.674026][ T13] stack backtrace: [ 110.679905][ T13] CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) [ 110.679920][ T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 110.679928][ T13] Workqueue: events_unbound flush_to_ldisc [ 110.679946][ T13] Call Trace: [ 110.679954][ T13] [ 110.679960][ T13] dump_stack_lvl+0x189/0x250 [ 110.679972][ T13] ? __pfx_dump_stack_lvl+0x10/0x10 [ 110.679983][ T13] ? __pfx__printk+0x10/0x10 [ 110.680000][ T13] validate_chain+0x1f05/0x2140 [ 110.680020][ T13] __lock_acquire+0xab9/0xd20 [ 110.680034][ T13] ? sixpack_write_wakeup+0x30/0x480 [ 110.680050][ T13] lock_acquire+0x120/0x360 [ 110.680061][ T13] ? sixpack_write_wakeup+0x30/0x480 [ 110.680077][ T13] ? ldsem_down_read_trylock+0x137/0x1a0 [ 110.680091][ T13] ? tty_ldisc_ref+0x1c/0x90 [ 110.680102][ T13] ? __pfx_ldsem_down_read_trylock+0x10/0x10 [ 110.680118][ T13] _raw_read_lock+0x36/0x50 [ 110.680130][ T13] ? sixpack_write_wakeup+0x30/0x480 [ 110.680144][ T13] sixpack_write_wakeup+0x30/0x480 [ 110.680160][ T13] ? __pfx_sixpack_write_wakeup+0x10/0x10 [ 110.680175][ T13] tty_wakeup+0xbe/0x100 [ 110.680185][ T13] tty_port_default_wakeup+0xfb/0x170 [ 110.680199][ T13] serial8250_tx_chars+0x72e/0x970 [ 110.680215][ T13] __start_tx+0x33b/0x480 [ 110.680228][ T13] __uart_start+0x23f/0x460 [ 110.680240][ T13] uart_write+0xdc/0x130 [ 110.680252][ T13] sixpack_receive_buf+0x447/0x1450 [ 110.680272][ T13] ? __pfx_sixpack_receive_buf+0x10/0x10 [ 110.680288][ T13] tty_ldisc_receive_buf+0x119/0x160 [ 110.680301][ T13] tty_port_default_receive_buf+0x6e/0xa0 [ 110.680315][ T13] flush_to_ldisc+0x24a/0x6e0 [ 110.680328][ T13] ? process_scheduled_works+0x9ef/0x17b0 [ 110.680342][ T13] process_scheduled_works+0xae1/0x17b0 [ 110.680361][ T13] ? __pfx_process_scheduled_works+0x10/0x10 [ 110.680378][ T13] worker_thread+0x8a0/0xda0 [ 110.680396][ T13] kthread+0x711/0x8a0 [ 110.680412][ T13] ? __pfx_worker_thread+0x10/0x10 [ 110.680425][ T13] ? __pfx_kthread+0x10/0x10 [ 110.680441][ T13] ? _raw_spin_unlock_irq+0x23/0x50 [ 110.680452][ T13] ? lockdep_hardirqs_on+0x9c/0x150 [ 110.680464][ T13] ? __pfx_kthread+0x10/0x10 [ 110.680479][ T13] ret_from_fork+0x4bc/0x870 [ 110.680492][ T13] ? __pfx_ret_from_fork+0x10/0x10 [ 110.680506][ T13] ? __switch_to_asm+0x39/0x70 [ 110.680517][ T13] ? __switch_to_asm+0x33/0x70 [ 110.680527][ T13] ? __pfx_kthread+0x10/0x10 2025/09/15 18:15:24 executed programs: 47 [ 110.680542][ T13] ret_from_fork_asm+0x1a/0x30 [ 110.680558][ T13] [ 111.051438][ T6076] sp0: Synchronizing with TNC [ 111.133271][ T6077] sp0: Synchronizing with TNC [ 111.173639][ T6078] sp0: Synchronizing with TNC [ 111.262800][ T6079] sp0: Synchronizing with TNC [ 111.333577][ T6080] sp0: Synchronizing with TNC [ 111.411898][ T6081] sp0: Synchronizing with TNC [ 111.465964][ T6082] sp0: Synchronizing with TNC [ 111.523507][ T6083] sp0: Synchronizing with TNC [ 111.606093][ T6084] sp0: Synchronizing with TNC [ 111.664276][ T6085] sp0: Synchronizing with TNC [ 111.712945][ T6086] sp0: Synchronizing with TNC [ 111.804501][ T6087] sp0: Synchronizing with TNC [ 111.881959][ T6088] sp0: Synchronizing with TNC [ 111.965772][ T6089] sp0: Synchronizing with TNC [ 112.057086][ T6090] sp0: Synchronizing with TNC [ 112.144478][ T6091] sp0: Synchronizing with TNC [ 112.233035][ T6092] sp0: Synchronizing with TNC [ 112.276491][ T6093] sp0: Synchronizing with TNC [ 112.381326][ T6094] sp0: Synchronizing with TNC [ 112.482702][ T6095] sp0: Synchronizing with TNC [ 112.591944][ T6096] sp0: Synchronizing with TNC [ 112.665792][ T6097] sp0: Synchronizing with TNC [ 112.737675][ T6098] sp0: Synchronizing with TNC [ 112.788228][ T6099] sp0: Synchronizing with TNC [ 112.857370][ T6100] sp0: Synchronizing with TNC [ 112.918854][ T6101] sp0: Synchronizing with TNC [ 112.968482][ T6102] sp0: Synchronizing with TNC [ 113.018443][ T6103] sp0: Synchronizing with TNC [ 113.087881][ T6104] sp0: Synchronizing with TNC [ 113.139579][ T6105] sp0: Synchronizing with TNC [ 113.217475][ T6106] sp0: Synchronizing with TNC [ 113.297335][ T6107] sp0: Synchronizing with TNC [ 113.367671][ T6108] sp0: Synchronizing with TNC [ 113.446420][ T6109] sp0: Synchronizing with TNC [ 113.507288][ T6110] sp0: Synchronizing with TNC [ 113.567702][ T6111] sp0: Synchronizing with TNC [ 113.658634][ T6112] sp0: Synchronizing with TNC [ 113.708385][ T6113] sp0: Synchronizing with TNC [ 113.766898][ T6114] sp0: Synchronizing with TNC [ 113.826861][ T6115] sp0: Synchronizing with TNC [ 113.888466][ T6116] sp0: Synchronizing with TNC [ 113.966781][ T6117] sp0: Synchronizing with TNC [ 114.028169][ T6118] sp0: Synchronizing with TNC [ 114.087567][ T6119] sp0: Synchronizing with TNC [ 114.158109][ T6120] sp0: Synchronizing with TNC [ 114.236708][ T6121] sp0: Synchronizing with TNC [ 114.296798][ T6122] sp0: Synchronizing with TNC [ 114.367469][ T6123] sp0: Synchronizing with TNC [ 114.457244][ T6124] sp0: Synchronizing with TNC [ 114.547525][ T6125] sp0: Synchronizing with TNC [ 114.646524][ T6126] sp0: Synchronizing with TNC [ 114.746849][ T6127] sp0: Synchronizing with TNC [ 114.807520][ T6128] sp0: Synchronizing with TNC [ 114.877078][ T6129] sp0: Synchronizing with TNC [ 114.977501][ T6130] sp0: Synchronizing with TNC [ 115.080646][ T6131] sp0: Synchronizing with TNC [ 115.177373][ T6132] sp0: Synchronizing with TNC [ 115.228898][ T6133] sp0: Synchronizing with TNC [ 115.268812][ T6134] sp0: Synchronizing with TNC [ 115.308306][ T6135] sp0: Synchronizing with TNC [ 115.377364][ T6136] sp0: Synchronizing with TNC [ 115.438230][ T6137] sp0: Synchronizing with TNC [ 115.497653][ T6138] sp0: Synchronizing with TNC [ 115.556581][ T6139] sp0: Synchronizing with TNC [ 115.637708][ T6140] sp0: Synchronizing with TNC [ 115.688121][ T6141] sp0: Synchronizing with TNC [ 115.748084][ T6142] sp0: Synchronizing with TNC [ 115.828410][ T6143] sp0: Synchronizing with TNC [ 115.887684][ T6144] sp0: Synchronizing with TNC [ 115.928108][ T6145] sp0: Synchronizing with TNC 2025/09/15 18:15:29 executed programs: 118 [ 115.986637][ T6146] sp0: Synchronizing with TNC [ 116.048394][ T6147] sp0: Synchronizing with TNC [ 116.130543][ T6148] sp0: Synchronizing with TNC [ 116.217487][ T6149] sp0: Synchronizing with TNC [ 116.278388][ T6150] sp0: Synchronizing with TNC [ 116.368631][ T6151] sp0: Synchronizing with TNC [ 116.457807][ T6152] sp0: Synchronizing with TNC [ 116.527185][ T6153] sp0: Synchronizing with TNC [ 116.587836][ T6154] sp0: Synchronizing with TNC [ 116.657000][ T6155] sp0: Synchronizing with TNC [ 116.717707][ T6156] sp0: Synchronizing with TNC [ 116.777107][ T6157] sp0: Synchronizing with TNC [ 116.857381][ T6158] sp0: Synchronizing with TNC [ 116.947808][ T6159] sp0: Synchronizing with TNC [ 117.047276][ T6160] sp0: Synchronizing with TNC [ 117.108078][ T6161] sp0: Synchronizing with TNC [ 117.169661][ T6162] sp0: Synchronizing with TNC [ 117.208321][ T6163] sp0: Synchronizing with TNC [ 117.288059][ T6164] sp0: Synchronizing with TNC [ 117.357695][ T6165] sp0: Synchronizing with TNC [ 117.418014][ T6166] sp0: Synchronizing with TNC [ 117.467450][ T6167] sp0: Synchronizing with TNC [ 117.528418][ T6168] sp0: Synchronizing with TNC [ 117.638384][ T6169] sp0: Synchronizing with TNC [ 117.679229][ T6170] sp0: Synchronizing with TNC [ 117.729461][ T6171] sp0: Synchronizing with TNC [ 117.786933][ T6172] sp0: Synchronizing with TNC [ 117.846689][ T6173] sp0: Synchronizing with TNC [ 117.898613][ T6174] sp0: Synchronizing with TNC [ 117.957576][ T6175] sp0: Synchronizing with TNC [ 118.017552][ T6176] sp0: Synchronizing with TNC [ 118.087866][ T6177] sp0: Synchronizing with TNC [ 118.147458][ T6178] sp0: Synchronizing with TNC [ 118.247939][ T6179] sp0: Synchronizing with TNC [ 118.317601][ T6180] sp0: Synchronizing with TNC [ 118.377528][ T6181] sp0: Synchronizing with TNC [ 118.436456][ T6182] sp0: Synchronizing with TNC [ 118.507368][ T6183] sp0: Synchronizing with TNC [ 118.568290][ T6184] sp0: Synchronizing with TNC [ 118.667111][ T6185] sp0: Synchronizing with TNC [ 118.738390][ T6186] sp0: Synchronizing with TNC [ 118.808024][ T6187] sp0: Synchronizing with TNC [ 118.866691][ T6188] sp0: Synchronizing with TNC [ 118.947130][ T6189] sp0: Synchronizing with TNC [ 119.037230][ T6190] sp0: Synchronizing with TNC [ 119.097494][ T6191] sp0: Synchronizing with TNC